diff --git a/lib/system.nim b/lib/system.nim
index c2b45e01de..66daf3be18 100644
--- a/lib/system.nim
+++ b/lib/system.nim
@@ -3671,7 +3671,7 @@ template closureScope*(body: untyped): untyped =
 when defined(nimconfig):
   include "system/nimscript"
 
-when defined(windows) and appType == "console":
+when defined(windows) and appType == "console" and not defined(nimconfig):
   proc setConsoleOutputCP(codepage: cint): cint {.stdcall, dynlib: "kernel32",
     importc: "SetConsoleOutputCP".}
   discard setConsoleOutputCP(65001) # 65001 - utf-8 codepage
\ No newline at end of file